I am on dial-up and for two days have been trying to load the current 157 MB update

I have been unable to load this new update on my dial up.  Half way thru I got a failure error and it stopped.  I tried again and after 2 hours AOL disconnected and I lost it again.  Those of us on dial up need help.  Why can't the update just resume where it left off when I reconnect ?  For 4 hours I have tried again to load this today.  Only  a little ways loaded.